🇺🇸 N584FX - Bombardier Challenger 350 - Flexjet LXJ584, Addison (ADS) to Chicago Executive (PWK) - 6.4 mi away @ 46950 ft, heading NNE at 557 mph. Spotted 3x before. [04:23:12 PM CDT] #A78557 #N584FX #CL35 #FLEXJET #LXJ584 #ADSB #ADSBbot